Kentucky CDL Practice Test: Tank - Test 2020

Directions: To obtain this endorsement for hauling any liquid or gaseous materials in a tank or tanks, applicants must pass a 15-question test. And to pass the test, applicants must score at least 80%. Test questions are from the Kentucky Commercial Driver Handbook. The Tanker Vehicles endorsement can be used with the Class A, B, or C CDL. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at Kentucky DMV locations.

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1. What is the best way to recognize that the trailer has started to skid?

Sound your horn

Turn on your high beams

Flash your high beams

Turn off your headlights

2. A trailer air supply that is in good working condition will pop out when the air pressure falls into what range?

Drive on the shoulder

Sound your horn to warn others

Use your high beams

Use your four-way flashers

3. The effects of liquid surge can be particularly dangerous for tankers driving on what type of surface?

25 mph

20 mph

30 mph

4. If you have a cellphone, it's best to call for assistance _______.

Fluctuate your speed to keep alert

Drive slower than the flow of traffic

Drive faster than the flow of traffic

Drive with the flow of traffic

5. How should you check a tank for any spills?

Warning of merging traffic to the right.

Warning of a right turn ahead.

Warning of a winding road ahead.

Warning of a right curve ahead.

6. Because of a liquid tanker's high center of gravity and liquid surge, you should approach curves by ______.